Tag Archives: Procyon

Aurora Dog over Alaska 

Image Credit & Copyright: John Chumack

Sometimes it is hard to believe what you see in the sky. While leading his annual aurora tour last month near Fairbanks in central Alaska, astrophotographer John Chumack and his company saw a most unusual aurora. This bright aurora appeared to change into the shape of a jumping dog, complete with a curly tail. He was able to capture the fleeting natural apparition in the above image with a 15-second exposure through a wide-angle lens. By coincidence, he also captured a background sky filled with familiar highlights. Planets visible include bright Jupiter through the dog’s front legs and reddish Mars below the dog’s hind legs. Stars visible include the Big Dipper stars above the dog’s midsection and reddish Betelgeuse shining on the far right. This dog would not be following him home, however, and within a few minutes morphed into other shapes before thegeomagnetic storm particles that created it shifted to strike the Earth elsewhere.

NASA APOD 29-Apr-14

Winter Triangle

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A bright asterism of the northern winter sky Winter Triangle  (part of Winter hexagon) . Its corners are the three 1st-magnitude stars Betelgeuse (α Ori), Procyon (α CMi), and Sirius (α CMa).

These three stars are three of the ten brightest objects, as viewed from Earth, outside the Solar System. Betelgeuse is also particularly easy to locate, being a shoulder of Orion, which assists stargazers in finding the triangle. Once the triangle is located, the larger hexagon may then be found.

Several of the stars in the hexagon may also be found independently of one another by following various lines traced through various stars in Orion.

The stars in the hexagon are parts of six constellations. Counter-clockwise around the hexagon, starting with Rigel, these are Orion, Taurus, Auriga,Gemini, Canis Minor, and Canis Major.

Imaging telescopes or lenses: Nikon AFS 28-70mm/F2.8 D
Imaging cameras: Nikon D800 Mod
Mounts: Takahashi 90S
Software: DeepSkyStacker, Adobe Photoshop CC, Auriga Imaging RegiStar
Dates: Jan. 1, 2014
Locations: Mt. Shiao-Shuei (Taiwan)
Frames: 96×300″ ISO400
Integration: 8.0 hours

Autor: Wei-Hao Wang

01 March 2014

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